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mr.card1
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Accuracy for .357 Maxima
Oct 15th, 2020 at 5:06pm
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I ended up with a .357 Maximum barrel for my Stevens 44 1/2, I am breech seating a 236 grain Accurate bullet and am not having much success with accuracy. It is a 28 inch barrel-15 twist.  I have got a few groups of about an inch at 100 yds. It seems to only get any consistancy at 1150 fps. Tried several powders without much success. 4227 - 13.5 grns is only load that showed any potential.  Any suggestions would be appreciated ........Thanks
  
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oneatatime
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Re: Accuracy for .357 Maxima
Reply #1 - Oct 15th, 2020 at 5:14pm
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Have you tried some lighter bullets say 200 to 210?
  
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sae
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Re: Accuracy for .357 Maxima
Reply #2 - Oct 15th, 2020 at 5:24pm
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I have super good luck using Hodgon Lil'Gun and 180 gr bullets, it seems to be tailor made for the Maxi, but I am using it in crimped rounds. H110 is fairly decent also in them as well as 1680, I have 4 different 357 Maxi guns and am looking to do a rechamber on another 357 Mag for a fifth one. I know at least one of mine has a 1 in 14 twist.

Steve.........
« Last Edit: Oct 28th, 2020 at 10:55am by sae »  
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beltfed
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Re: Accuracy for .357 Maxima
Reply #3 - Oct 15th, 2020 at 5:52pm
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OR 1680
beltfed/arnie
  
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uscra112
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Re: Accuracy for .357 Maxima
Reply #4 - Oct 15th, 2020 at 6:08pm
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Who chambered the barrel and with what reamer?  SAAMI standard reamer drawing calls for a pilot that is way undersize.  Can cut an offcenter throat, not to mention the body.  And the SAAMI throat is just a forcing cone.  Better reamers exist - mine was ground by Dave Manson, and used to lengthen a .38 Spl 12" Contender barrel to Max.  It shoots well, but not stellar.  I lost interest to the whole thing before I really wrung it out.  As far as I got, Lil'Gun  was the best powder, although for "less than hunting" loads, the old standby Blue Dot worked well too.
  
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sae
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Re: Accuracy for .357 Maxima
Reply #5 - Oct 25th, 2020 at 10:18am
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uscra112

My Wife and I both have Tee shirts with the same pic as your avatar on the back of them. Cool

Steve.......
  
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Patrick Chadwick
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Re: Accuracy for .357 Maxima
Reply #6 - Oct 25th, 2020 at 5:49pm
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mr.card1 wrote on Oct 15th, 2020 at 5:06pm:
... not having much success with accuracy. It is a 28 inch barrel-15 twist.  I have got a few groups of about an inch at 100 yds...


Well that sounds pretty good to me! Are you using iron sights, or a scope? Unless you have amazing eyesight, achieving 1 MOA (1" @ 100yds) is about the best you can expect without a scope. Your minimum group size will be limited by your PWF (Personal Wobble Factor + vision limitations), and you will hardly see any further improvement unless you can get a scope on the rifle and bench-rest it. 

I shoot rifles made over a period of 350 years, and I always come up against this limit. I sometimes have to be inventive to get a scope onto the rifle, but it's often the only way to discover the limits of the rifle rather than the limits of the shooter.
 
  
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Cbashooter
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Re: Accuracy for .357 Maxima
Reply #7 - Oct 25th, 2020 at 9:00pm
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I had one of the ruger number 1 CHP models in.357 magnum and throated out with a case full of reloader 7  And a 260 grain bullet it was minute of angle often enough to be fun velocity was just barely a 1000 though.
  
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mr.card1
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Re: Accuracy for .357 Maxima
Reply #8 - Oct 25th, 2020 at 11:08pm
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To answer a couple of questions the barrel was chambered by CPA and is 14 twist not 15
  
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